Hose coupling



June 16, 1925. 1,542,335

, E. ARDARELLI HOSE COUPLING Filed Jan. 4, 1923 Patented J une 16, 19.25.

UNITED rSflfAfrES EMILIO CARDARLLI, or BOSTON, MASSACHUSETTS, assIeNORor ONE-THIRD To -f NICOLA PETITTLVOF BOSTON, MASSACHUSETTS.

` HOSE COUPLING.

applicati@ mea January 4, 1923. serial No. 610,691(

To all 'whom 'it may concern:` y

Be it known that I, EMrLio GARDARELLI, a citizen of' the United 'States of America, and resident of Boston (Dorchester), ini the county of Suffolk and State of Massachusetts, have invented new and useful`v Im provements in Hose Couplings, of which the following' is a specification. j i

This invention relates to improvements in coupling devices and particularlyto struc tures ofA this type adapted to-be quickly attached and detached,1such as hose couplings. Objects of the invention arefto provide a simple, strong and eiiicient device of this character which'hasf few moving parts, 'to protect the moving parts against accidental displacement or damageunder hard usage, and in general to Vsimplify and vto improve prior devices. e Y y l In one aspect the invention comprises a hose coupling consisting ot mating parts, one. partthaving a member movable to engage the other part to force the parts into engagement and actuating meansf for the membermounted onthe; `movable member itself, preferably infthe form .of a cam plate movable generally transversely of the path of movement of the member. The member may comprisealever pivoted to` a lug on one part of the coupling, the cam actuator on` the lever being arranged to cooperate with the lug as anabutmentn Novel means are provided for protecting therleverand `the cam plate pivoted thereon from injury and from accidental displacement. y' In another aspect y'theinvention comprises a hose coupling ofinating parts with a projection on one partltelescoping within the other part 4and means on the second ypart arranged y to engage the projection to retain they parts in engagement, ,the means 'including a fixed memberorintegralportion ,of thefsecond part of thecouplingarranged to fit in a recess or annular groove in the projection. A/movable Vmember 'or jaw is also provided to engage the shoulder on the projection defined j bythe recess or groove to y forcethe parts into fluid-tight. engagement. For ,the purpose `of illustration one con- Qcretegembodiment of the -invention is shown inthe accompanying drawings, in which Figwl isv a plan view ofv a hose coupling embodying thefeatures of the invention;

Fig. 2 is a lsectional,view on .the line 2-2 @Ela- Fig. 3 is an inner end elevational view of the female part of the coupling;

Fig. 4 is an enlarged elevational view of the latching mechanism, adjacent partsot the device being shown in Section; e

Fig. 5 is an enlarged perspective view of the cam actuator for the latch mechanism;

Fig. 6 is a side elevational view showing r.thr parts as they are engaged or disengaged; an f Fig. 7 is a side elevation illustrating a modiiied form of the male element ofthe coupling. Y y l The embodimentof the invention chosen for the purpose of illustration comprises a hose coupling consisting ot the mating parts A and B. Each part'has a ribbed or roughened extension 7 adapted to be inserted within the end of a piece of hose andto be secured therein by any suitable means. Part A of the coupling has anA axial projection 8 adapted toY telescope within the enlarged bore 9 of member B and to be pressed against a packing ring 10 of rubber orother suitable material in the base of. bore 9 to produce {iuid-tight engagement ofthev coupling parts. The means for `forcing the parts of the coupling together and retaining them in coupled position are mounted vupon vpart B and comprise an integral portion V11 radially disposed and partly closing the endy openmg'of member B as indicated in Fig. 3. f

Diametrically vopposed to portion 111 is a movable member 12, these two elements being adapted to fit into an annular groove 13 of the projection 8 of member A, this j' groove definingv any annular shoulder or iiange 14. As indicated in Fig. 3, member l12'has an arcuate lower edge to fit within the annular groove 13 and this member acts as a jaw bearing against shoulder 14 to kforce and retain the projection 8 within bore 9 of member B. Member or jaw 12is the shorter arm ofa lever mounted Jfor swinging movement between spaced lugs or ears 15 integral with member Bby means ofa pivot 16 passing through openings in the lugs and the lever. The Vlong arm 17 of the lever extends axially of member B above a cut-away portion 1.8 of the latter between lugs 15 and an integral upstanding projection 19 on member B.

When arm 17 is in the lower position indicated in Fig. 6 the parts A and B of the ycoupling are unlatched and kmay be separated and when. arm 17 is moved upwardly to positionk indicated in Fig. 2l the parts'of the coupling are in locked or operative position. Movement of the lever to operative position is effected by means of a ca-mplate 01- actuator 2O shown 1n enlarged perspective in Fig. Actuator 2O is secured to thel under side of lever 17 by means of a pin 21 extending through air opening 22' in thel actuator and serving as a pivot on which the actuator may Swingin av plane transverse to the path of movement of the lever. The forward edge 230i: actuator 20 forms a cam surface arranged to engage the' lower portion of lugs 15 asv an abutment, the shape of the actuator being such that on engagement of the cam edge with its abutment-the lever arm 17 is forced upward to operative or' locked position shown in Fig. 2'. For convenience in moving the actuator, the oppositesides thereof have bent portions 241 and 25 serving as thumb or finger pieces.

In the use ofthe device the mating parts A and B' are' angularly disposed on initial engagement as indicated in Figi', 6, the annular flange let of member A being' first inserted withinI or behind the integral radial member or stop' 11 of member B'. The two parts are then brought into alignment with the radial fiange let slipping inwardly beneath jaw 12, the forward portion ofthe flange being rounded as indicated at 26 (Fig. 2) for this purpose. Pressure is then applied to thumb rest 24C" of cam actuator 20 to force the latter inwardly beneath the long arm 17 of the lever which carries jaw 12, cam face 23 bearing against the abutment formed by lugs 15, and raising lever arm 17 to cause jaw 12 to move inwardly ythereby forcing projection 8 into fluid tight engagement with washer 10. Vhen the parts are in latched or locking position they are disposed in the manner indicated in Figs. 1 and 2.

To protect the cam actuator 20 from injury or accidental displacement as when the coup-ling is dragged over the ground and around corners, a protector plate 27 is secured to the upper side of lever arm 17, this plate being of a size to entirely cover the cam actuator kwhen in locked position as shown in Figs. 1 and 2. The edge 28 of this plate may be slightly' raised as indicated in Fig. -t to form a cam surface under which the thumb rest 24: of the cam actuator may wedge when in locked position to yieldingly hold the cam actuator against accidental movement. For further protection of actuator 20 against accidental displacement a keeper in the form of a plate'29 may be provided mounted for pivotal movement about axis 16, this keeper being disclosed its inoperative position in Fig. 6 and in `its operative or locking position in Figs. 1

ande. The shape of' keeper 29 is such that when* in locking position it; does-` not' project above the adjacent portions of the device such as the lugs 15 and the protector 27. The keeper may have a bent. 0r hook end 29 curving around the inner portion of thumb rest 24 as a further protection for the actuator.

To disengage the parts of the coupling, keeper 29-isfrai`s`ed to the position shown in Fig. 6 and linger rest 25 of the cam actuator 75 2O is pressed tomovethe latter out of operative position and to permit lever arm 17 to drop to the position shown in Figs. 4 and 6. Thereupon the part A may be' disengaged from part B in the mannerindicated in Fig; 6. In Fig. 7 a slight modification of the male member of thel coupling is shown, this member beilngj designa-ted A and having' the threaded portion 100' ad'apted for direct' engagement with a faucet or other threaded pipe connection, but being otherwise identica-1 with the part A herein above described. j

From the above it will; be apparent that the coupling device herein disclosed comprises few parts of strong construction, that the parts ofthe coupling' can be quickly and readily engaged* and disengaged and that when in locked or engaged position the movable members which wedge vand retain the parts together are completely protected from injury and from accidental displacement. g

I claim:

1. A hose coupling comprising mating parts, a lever connected to onepart movable to engage the other part to force the parts into iiuid tight relationship,'and`cam means connected to said: lever and movable in a plane transverse to the p-lanev of move- 10' ment of said lever for forcing the lever into operative retaining position.

2. A hose coupling comprising mating parts, a member on one part movable Vto engage the other part to force said parts into fluid-tight engagement, a cam actuator pivoted to said member and movable in a plane transverse to the movement of said member from inoperative position in which the parts may be separated to operative position in which the parts are locked together, and means for restraining said actuator against accidental displacement when in 'operative position. i

3. A hose coupling comprising mating parts adapted for telescopic engagement, a lever pivoted onv one part and having a jaw at one end'thereof arranged to engage the telescoping portion of sai-d other art to force and hold vsaid parts in huid-tight engagement, and cam means connected to 'said lever and arranged to engage an abutment ron Asaid first named part.

et. A hose coupling comprising mating parts adapted for telescopic engagement, a

lug projecting from one of said parts, a lever pivoted to said lug and having one arm shaped to `form a jaw engaging the other part of said couplin to force and retain the parts in fiuid-tigt engagement, and a cam actuator pivoted to the other arm of said lever arranged to engage said lug as an abutment.

5. A hose coupling comprising mating parts adapted for telescopic engagement, a lug projecting from one of said parts, a lever pivoted `to said lug and having its short arm shaped to form a jaw engaging the other part of said coupling to force and retain the parts in engagement, and a cam actuator pivoted to the under side of the long arm of said lever for cooperation With said lug as an abutment.

6. A hose coupling comprising mating parts adapted for telescopic engagement, a lug projecting from one of said arts, a lever pivoted to said lug and having one arm shaped to form a jaw engaging the other part of said coupling to. force and retain the parts in fluid-tight engagement, means for moving said lever from inoperative to operative position comprising a cam actuator pivoted to the other arm of said lever and cooperating with said lug as an abutment, and a keeper for preventing accidental displacement of said actuator.

7. A hose coupling comprising mating arts adapted for telescopic engagement, a ug projecting from one of said parts, a

lever pivoted to said lug and havlng one arm shaped to form a jaw engaging the other p-art of said couplin to force and retain the parts in fluid-tigglit engagement, means for moving said lever from inoperative to operative position comprising a camy actuator lever an an abutment, and a keeper pivoted to said,

lug for movement into the path of said actuator when inoperative position to prevent accidental displacement of the latter.

8. A hose coupling comprising mating parts 'adapted for telescopic engagement, a lug projecting from one of said parts, a lever pivote-d to said lug and having its short arm shaped to form a jaw engagin the other part of said coupling to force and retain the parts in engagement, and a cam actuator pivoted to the under side of the long arm of said lever for cooperation with said lug as an abutment, and a protector plate on the long arm of said lever covering said actuator when in operative position. t

9. A hose coupling comp-rising mating parts, a projection upon one part ,telescoping with the other part, said projection having an annular groove defining a shoulder, and means on said other part are ranged to engage said shoulder to retain the parts in engagement, said means comprising an integral member radially disposed to fit Within said groove and jaw movable in an axial direction to force said projection Within said other part, said jaw forming one arm of a lever pivoted to a lug on said other part andl being actuated by a. cam member pivoted to said: lever and arranged to engage said lug as an abutment.

Signed by me at Boston, Massachusetts, this 3rd day of January, `1952.3.

EMILIO CARDARELLI. 

